[英]How to get parent of MMC SnapIn panel controls
我正在開發我的第一個MMC SnapIn。 我想要每個SnapIn配置信息。 我需要從“管理單元”面板控件訪問該信息。 我看不到從這些控件中找到父SnapIn對象的任何方法。 除了創建靜態全局以外,還有其他方法嗎?
作為SnapIn一部分的FormViewDescription似乎使用默認的構造函數創建控件:
// Create a form view for the root node.
FormViewDescription fvd = new FormViewDescription();
fvd.DisplayName = "Status";
fvd.ViewType = typeof(SelectionFormView);
fvd.ControlType = typeof(SelectionControl);
謝謝
在控件( SelectionControl
)中,可以實現Microsoft.ManagementConsole.IFormViewControl
接口。 然后,您會收到一個以FormView
作為參數的Initialize
方法的調用。 通過此參數,您可以訪問管理單元。
這是一個示例:
public class SelectionControl : UserControl, IFormViewControl
{
...
public void Initialize(FormView view)
{
var snapIn = view.ScopeNode.SnapIn;
...
}
}
[編輯]
您可以使用以下類作為控件的基類,而不是UserControl
:
//
// @(#) FormViewControl.cs
//
// Project: usis.ManagementConsole
// System: Microsoft Visual Studio 2015
// Author: Udo Schäfer
using System;
using System.Windows.Forms;
using Microsoft.ManagementConsole;
namespace usis.ManagementConsole
{
// ---------------------
// FormViewControl class
// ---------------------
/// <summary>
/// Provides an empty control that can be used to create the content of a Windows Forms view.
/// </summary>
/// <seealso cref="UserControl" />
/// <seealso cref="IFormViewControl" />
public class FormViewControl : UserControl, IFormViewControl
{
#region fields
private Control oldParent;
#endregion fields
#region properties
// -----------------
// FormView property
// -----------------
/// <summary>
/// Gets the associated Windows Forms view.
/// </summary>
/// <value>
/// The form view.
/// </value>
protected FormView FormView { get; private set; }
// ---------------
// SnapIn property
// ---------------
/// <summary>
/// Gets the scope node's snap-in.
/// </summary>
/// <value>
/// The scope node's snap-in.
/// </value>
protected NamespaceSnapInBase SnapIn
{
get { return this.FormView.ScopeNode.SnapIn; }
}
#endregion properties
#region overrides
// ----------------------
// OnParentChanged method
// ----------------------
/// <summary>
/// Raises the <see cref="Control.ParentChanged"/> event.
/// </summary>
/// <param name="e">An <see cref="T:System.EventArgs"/> that contains the event data.</param>
protected override void OnParentChanged(EventArgs e)
{
if (Parent != null)
{
if (!DesignMode) Size = Parent.ClientSize;
Parent.SizeChanged += Parent_SizeChanged;
}
if (oldParent != null)
{
oldParent.SizeChanged -= Parent_SizeChanged;
}
oldParent = Parent;
base.OnParentChanged(e);
}
#endregion overrides
#region IFormViewControl implementation
// -----------------
// Initialize method
// -----------------
/// <summary>
/// Uses the associated Windows Forms view to initialize the control.
/// </summary>
/// <param name="view">The associated <c>FormView</c> value.</param>
public void Initialize(FormView view)
{
FormView = view;
OnInitialize();
}
// -------------------
// OnInitialize method
// -------------------
/// <summary>
/// Called when the control is initialized.
/// </summary>
protected virtual void OnInitialize() { }
#endregion IFormViewControl implementation
#region private methods
// -------------------------
// Parent_SizeChanged method
// -------------------------
private void Parent_SizeChanged(object sender, EventArgs e)
{
if (!DesignMode) Size = Parent.ClientSize;
}
#endregion private methods
}
}
// eof "FormViewControl.cs"
(這還將在其父控件中調整控件的大小。)
注意:不要訪問類的構造函數中的SnapIn
屬性。 請改用OnInitialize
方法。
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